Structural analysis of the sialylated N- and O-linked carbohydrate chains of recombinant human erythropoietin expressed in Chinese hamster ovary cells. Sialylation patterns and branch location of dimeric N-acetyllactosamine units. (1995)

Hokke C, Bergwerff A, Van Dedem G, Kamerling J, Vliegenthart J
Eur J Biochem, 1995 vol.228:981-1008